CN106931681A - A kind of solar refrigeration system - Google Patents
A kind of solar refrigeration system Download PDFInfo
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- CN106931681A CN106931681A CN201710243561.8A CN201710243561A CN106931681A CN 106931681 A CN106931681 A CN 106931681A CN 201710243561 A CN201710243561 A CN 201710243561A CN 106931681 A CN106931681 A CN 106931681A
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- water
- solar
- fresnel lenses
- refrigeration system
- steam generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Photovoltaic Devices (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a kind of solar refrigeration system, including Fresnel Lenses and it is arranged on the sunshine tracker of Fresnel Lenses end；Also include being sequentially connected in series and being formed solar energy water steam generator, pump, condenser, choke valve, evaporator and the fluid reservoir of circulation loop, the solar energy water steam generator is located at the focal point of Fresnel Lenses；Wherein, the solar energy water steam generator is clear glass pipeline, and water has been flowed through in the clear glass pipeline, and floating has material on the water surface, and material is made up of expanded graphite layer and carbon foam layer.Solar refrigeration system simple structure of the present invention, by convex lens focus principle, and water is become into water vapour so as to for freezing using carbon foam and expanded graphite, it is the solar energy absorption type refrigeration mode of hot water compared to thermal source, not only simplify the structure of system, and there is no corrosion, while also having heat utilization efficiency high.
Description
Technical field
The present invention relates to a kind of solar refrigeration system, belong to technical field of solar.
Background technology
The energy is the material base that human society exists and develops.Human social development to current era, conventional fossil combustion
Material (oil, natural gas, coal) is always the main energy sources of human social development.Fossil energy promotes human society not
It is disconnectedly progressive, but the destruction of excess emissions, ozone layer of serious waste, greenhouse gases of resource etc. has begun to injure the mankind
Existence.Although the fossil energy reserves comparing of China is enriched, China human mortality is numerous, and per capita energy's resource but only has people from world
1/2 or so of equal energy resources, year, energy consumption was only the 1/12 of the U.S. per capita.From the point of view of energy consumption structure, China is in the world
Maximum consumption of coal state, consumption of coal accounts for the 2/3 of total energy consumption, and this is that our environmental pollutions are serious, and ecological environment is disliked year by year
The major reason of change.Therefore, be sustainable development, build a conservation-minded society, promote a conservation culture society, greatly develops new energy
With the main target that regenerative resource has turned into Chinese current and future development.
Solar energy as a kind of reproducible clean energy resource, with distributional region it is wide, safety nuisance free, the amount of containing are huge,
The features such as without exploitation and transport, is by people's extensive concern and uses.China is one of country of solar energy resources very abundant,
2/3 regional year solar radiation total amount is more than 5020MJ/m2, year sunshine time is more than 2200 hours.The solar energy money of China
Source compared with the other countries of same latitude, except the abutting area in the Sichuan Basin is outer, most regional solar energy resourceses
Quite enrich.Therefore, by with huge market prospects, it not only brings society's effect well for the development and utilization of solar energy
Benefit, environmental benefit, but also with apparent economic benefit.It is extensive using solar energy be countries in the world government and scholar all
The heat subject attached great importance to.China is using Solar use as the important composition portion of renewable resource in energy strategy
Point, and a series of policy guidance file has been put into effect, encourage and support the development of solar energy cause.
According to the different approaches of Solar use, sun transformation of energy and utilization mainly have three kinds of modes：Photothermal deformation, light
Electricity conversion and photochemical transformation.In any of the above technology, the relative development of solar energy heat utilization technology is the most ripe, all kinds of sun
Many countries and regions are utilized in China and in the world for energy heat collector, solar water heating system, solar drying technology etc..
Based on solar energy heat utilization technology, solar refrigeration is to use a kind of skill that the heat energy of solar energy conversion is freezed
Art.Solar refrigeration biggest advantage is good seasonal adaptation：On the one hand, summer heat, intensity of solar radiation are big, people
It is big to the demand of air-conditioning；On the other hand, because summer intensity of solar radiation is big, make to be driven by solar energy the refrigeration unit can
To produce more colds.This active demand just with summer people's air-conditioning matches.It is right that solar refrigeration simultaneously also has
Air without destruction, the advantages of movement-less part, quiet operation.
General solar refrigeration produces hot water, the hot water of generation to be sent out in being passed through Absorption Refrigerator by solar thermal collector
Device is given birth to produce refrigerant vapour.Conventional absorption system such as refrigeration system with lithium bromide absorption, lithium bromide water solution
There is stronger corrosivity to ordinary carbon steel, not only have influence on the performance of unit and normal operation, and have influence on the life-span of unit.
And thermal conversion efficiency is relatively low during hot water heating lithium-bromide solution.Therefore, if there is a kind of solar refrigeration unit, can be without absorbing
Formula refrigeration method but directly with solar energy produce vapor freezed as refrigerant, then the unit can not only be avoided
The corrosive problem of unit, while thermal transition efficiency can also be improved.
The content of the invention
Goal of the invention：The technical problems to be solved by the invention are to provide a kind of new type solar energy refrigeration system, the system
Water vapour is directly produced using solar energy carries out kind of refrigeration cycle as refrigerant.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
A kind of solar refrigeration system, including Fresnel Lenses and be arranged on Fresnel Lenses end sunshine follow the trail of
Device；Also include being sequentially connected in series and formed the solar energy water steam generator of circulation loop, pump, condenser, choke valve, evaporator and
Fluid reservoir, the solar energy water steam generator is located at the focal point of Fresnel Lenses；Wherein, the solar energy water steam generation
Device is the clear glass pipeline of both ends open, and water has been flowed through in the clear glass pipeline, and floating has a material on the water surface, material by
Expanded graphite layer and carbon foam layer are constituted.
Wherein, the water vapour that the solar energy water steam generator is produced is pumped after taking and pressurizeing and is carried out into condenser
Condensation, condenser connection choke valve, the water that condenser is produced becomes gas-liquid two-phase water through choke valve, and gas-liquid two-phase water flows into evaporation
Evaporation endothermic in device, the steam of evaporator outflow is absorbed by fluid reservoir, and fluid reservoir enters water-filling to solar energy water steam generator
Supplement.
Wherein, in the material, expanded graphite layer is 2: 1 with the thickness ratio of carbon foam layer.
Wherein, the material is porous media material, and its porosity is 15%, and porous media material has good hydrophilic
Property.
Wherein, the Fresnel Lenses is erected on support.
Wherein, holder pivots drive device is additionally provided with the support, the holder pivots drive device drives and is erected at
Fresnel Lenses on support is rotated.
Wherein, the intensity of illumination being radiated on solar energy water steam generator after being focused on through the Fresnel Lenses is reachable
10kW/m2。
The operation principle of solar refrigeration system of the present invention is as follows：Solar tracker can be according to the change of position of sun
Fresnel Lenses is adjusted by holder pivots drive device, Fresnel Lenses is consistent with solar motion；Fresnel
Lens focus on sunlight, intensity of illumination is reached 10kW/m2, focus point is irradiated in the material in solar energy water steam generator
On (upper strata of material is expanded graphite layer, and lower floor is carbon foam layer), after material is heated, between lower floor's carbon foam layer and air
Pressure difference is formed, water can be drawn onto expanded graphite layer by this partial pressure differential by carbon foam layer, while expanded graphite layer and carbon foam
Layer all has good hydrophily；Water enters expanded graphite layer, and a large amount of heat energy hoarded herein can just convert the water to water vapour,
Steam temperature, simultaneously because carbon foam layer also has good thermal insulation, can reduce heat to water in pipe up to more than 100 DEG C
Middle transmission, heat is more retained in expanded graphite layer；The sunlight for irradiating expanded graphite layer is stronger, by carbon foam layer
The water being sucked up is bigger, and the water vapour of generation is also more；The water vapour of generation is pumped and enters condensation after taking and pressurizeing
Device is condensed, and water vapour enters choke valve after being condensed into water, and water becomes gas-liquid two-phase after choke valve, and gas-liquid two-phase water enters
Evaporation endothermic in evaporator, so as to produce refrigeration effect, the water vapour for flowing out evaporator is absorbed by fluid reservoir, the water in fluid reservoir
Solar energy water steam generator is flowed into supplement the water reduced by vaporization in solar energy water steam generator.
Compared with prior art, technical solution of the present invention have the advantage that for：
Solar refrigeration system simple structure of the present invention, by convex lens focus principle, and using carbon foam and expansion stone
Water is become water vapour so as to be the solar energy absorption type refrigeration mode of hot water compared to thermal source for freezing by ink, is not only simplified
The structure of system, and there is no corrosion, while also with heat utilization efficiency high.
Brief description of the drawings
Fig. 1 is the systematic schematic diagram of solar refrigeration system of the present invention；
Fig. 2 is the close-up schematic view of solar energy water steam generator in solar refrigeration system of the present invention.
Specific embodiment
Technical scheme is described further below in conjunction with accompanying drawing, but the scope of protection of present invention is simultaneously
It is not limited to this.
As shown in Fig. 1~2, solar refrigeration system of the present invention, including Fresnel Lenses 1, it is arranged on the end of Fresnel Lenses 1
The sunshine tracker 2 in portion, support 3 and holder pivots drive device 4；Also include being sequentially connected in series and forming circulation loop too
Positive energy steam generator 5, pump 6, condenser 7, choke valve 8, evaporator 9 and fluid reservoir 10；Fresnel Lenses 1 is erected at support
On 3；Solar energy water steam generator 5 is located at the focal point of Fresnel Lenses 1；Wherein, solar energy water steam generator 5 is two ends
The clear glass pipeline 11 of opening, the one end of clear glass pipeline 11 connection fluid reservoir 10, other end connection pump 6, transparent glass tube
Flow through in road 11 water (water in clear glass pipeline 11 is held essentially constant, and the water vapour for evaporating extracts by pump 6,
Fluid reservoir 10 supplements the water for evaporating), floating has material 12 on the water surface, and material 12 accounts for smaller in water body, and recyclable
Utilize, water can be directly changed water vapour by the sunlight irradiation after the line focus of material 12, and material 12 is double layer material, by upper strata
Expanded graphite layer 13 and the carbon foam layer 14 of lower floor constitute；Material 12 is porous media material；Solar energy water steam generator 5
The water vapour of generation is condensed after being extracted and pressurizeed by pump 6 into condenser 7, and the connection choke valve 8 of condenser 7, condenser 7 is produced
Raw water becomes gas-liquid two-phase water through choke valve 8, and gas-liquid two-phase water flows into evaporation endothermic in evaporator 9, the steaming of the outflow of evaporator 9
Vapour is absorbed by fluid reservoir 10, and fluid reservoir 10 enters the supplement of water-filling to solar energy water steam generator 5.
Solar refrigeration system Fresnel Lenses 1 of the present invention is erected on support 3, and holder pivots drive is additionally provided with support 3
Dynamic device 4, holder pivots drive device 4 can drive the rotation of Fresnel Lenses 1, and solar tracker 2 can be according to the sun
The change of position adjusts the focus of Fresnel Lenses 1 by holder pivots drive device 4, enables Fresnel Lenses 1 and the sun
Motion be consistent (i.e. Fresnel Lenses 1 can tracking sunlight keep intensity of illumination)；Illumination after being focused on through Fresnel Lenses 1
Intensity can reach 10kW/m2。
The operation principle of solar refrigeration system of the present invention is as follows：Fresnel Lenses 1 focuses on sunlight reaches intensity of illumination
To 10kW/m2, focus point is irradiated on the material 12 in solar energy water steam generator 5, makes the water in clear glass pipeline 11
Become water vapour, steam temperature, simultaneously because carbon foam layer 14 also has good thermal insulation, can subtract up to more than 100 DEG C
Few heat is transmitted in water in pipe, and heat is more retained in expanded graphite layer 13；Solar energy water steam generator 5 is utilized
The energy of the aggregation of Fresnel Lenses 1 heats material 12, forms pressure difference between lower floor's carbon foam layer 14 and air, this partial pressure differential
Water can be drawn onto expanded graphite layer 13 by carbon foam layer 14, water enters expanded graphite layer 13, a large amount of heat energy hoarded herein
Water vapour can just be converted the water to, the sunlight for irradiating expanded graphite layer 13 is stronger, by carbon foam layer 14 be sucked up come water
Amount is bigger, and the water vapour of generation is also more；The water vapour of generation is condensed after being extracted and pressurizeed by pump 6 into condenser 7,
Water vapour enters choke valve 8 after being condensed into water, and water becomes gas-liquid two-phase after choke valve 8, and gas-liquid two-phase water enters in evaporator 9
Evaporation endothermic, so as to produce refrigeration effect, the water vapour for flowing out evaporator 9 is absorbed by fluid reservoir 10, the current in fluid reservoir 10
Enter solar energy water steam generator 5 to supplement the water reduced by vaporization in solar energy water steam generator 5.
Solar refrigeration system of the present invention utilizes convex lens focus principle, and chasing after for sunlight is kept by sunshine tracker 2
Track, makes Fresnel Lenses 1 focus on sunlight and reaches 10kW/m2The focal point of intensity, using this focal point heating solar water
Material 12 in steam generator 5 produces water vapour, produced water vapour to be freezed for cooling cycle system.
Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and is not to of the invention
The restriction of implementation method.For those of ordinary skill in the field, it can also be made on the basis of the above description
The change or variation of its multi-form.There is no need and unable to be exhaustive to all of implementation method.And these belong to this hair
Obvious change that bright spirit is extended out or among changing still in protection scope of the present invention.
Claims (7)
1. a kind of solar refrigeration system, it is characterised in that：Including Fresnel Lenses and it is arranged on Fresnel Lenses end
Sunshine tracker；Also include being sequentially connected in series and being formed solar energy water steam generator, pump, condenser, the throttling of circulation loop
Valve, evaporator and fluid reservoir, the solar energy water steam generator are located at the focal point of Fresnel Lenses；Wherein, the sun
Energy steam generator is clear glass pipeline, and water has been flowed through in the clear glass pipeline, and floating has material, material on the water surface
It is made up of expanded graphite layer and carbon foam layer.
2. solar refrigeration system according to claim 1, it is characterised in that：The solar energy water steam generator is produced
Water vapour be pumped and take and condensed into condenser after pressurizeing, condenser connection choke valve, the water warp that condenser is produced
Choke valve becomes gas-liquid two-phase water, and gas-liquid two-phase water flows into evaporation endothermic in evaporator, and the steam of evaporator outflow is by fluid reservoir
Absorbed, fluid reservoir enters the supplement of water-filling to solar energy water steam generator.
3. solar refrigeration system according to claim 1, it is characterised in that：In the material, expanded graphite layer and carbon
The thickness ratio of froth bed is 2: 1.
4. solar refrigeration system according to claim 1, it is characterised in that：The material is porous media material, its
Porosity is 15%.
5. solar refrigeration system according to claim 1, it is characterised in that：The Fresnel Lenses is erected at support
On.
6. solar refrigeration system according to claim 5, it is characterised in that：Holder pivots drive is additionally provided with the support
Dynamic device, the holder pivots drive device drives the Fresnel Lenses being erected on support to rotate.
7. solar refrigeration system according to claim 1, it is characterised in that：Light after being focused on through the Fresnel Lenses
According to intensity up to 10kW/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243561.8A CN106931681B (en) | 2017-04-14 | 2017-04-14 | Solar refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243561.8A CN106931681B (en) | 2017-04-14 | 2017-04-14 | Solar refrigerating system |
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| Publication Number | Publication Date |
|---|---|
| CN106931681A true CN106931681A (en) | 2017-07-07 |
| CN106931681B CN106931681B (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710243561.8A Active CN106931681B (en) | 2017-04-14 | 2017-04-14 | Solar refrigerating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116806591A (en) * | 2023-07-12 | 2023-09-29 | 芜湖金伙伴农业科技有限公司 | Grape planting greenhouse with adjustable heat conduction efficiency |
| CN117329890A (en) * | 2023-09-28 | 2024-01-02 | 广州航海学院 | Roof heat dissipation system based on heat pipe heat accumulation type |
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| CN103471256A (en) * | 2013-08-22 | 2013-12-25 | 广东工业大学 | Nanometer molten salt phase-change energy storage solar furnace |
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| CN105571167A (en) * | 2016-01-05 | 2016-05-11 | 上海理工大学 | Focusing solar medium-temperature phase change heat accumulator |
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2017
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|---|---|---|---|---|
| CN2040616U (en) * | 1988-06-24 | 1989-07-05 | 赵秋生 | Heating tube focusing solar energy air conditioner |
| JP2005127694A (en) * | 2003-09-29 | 2005-05-19 | Matsushita Electric Ind Co Ltd | Heat storage type solar panel, solar system, heat storage type solar heat pump system, and operating method for heat storage type solar heat pump system |
| CN101782291A (en) * | 2009-06-09 | 2010-07-21 | 上海海事大学 | Adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe |
| CN103471256A (en) * | 2013-08-22 | 2013-12-25 | 广东工业大学 | Nanometer molten salt phase-change energy storage solar furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116806591A (en) * | 2023-07-12 | 2023-09-29 | 芜湖金伙伴农业科技有限公司 | Grape planting greenhouse with adjustable heat conduction efficiency |
| CN116806591B (en) * | 2023-07-12 | 2024-04-23 | 芜湖金伙伴农业科技有限公司 | Grape planting greenhouse with adjustable heat conduction efficiency |
| CN117329890A (en) * | 2023-09-28 | 2024-01-02 | 广州航海学院 | Roof heat dissipation system based on heat pipe heat accumulation type |
| CN117329890B (en) * | 2023-09-28 | 2024-06-07 | 广州航海学院 | Roof heat dissipation system based on heat pipe heat accumulation type |
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| CN106931681B (en) | 2020-02-18 |
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